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Lines in LCD tv moving from bottom to top when connectin RCA

The problem is this, if i connect an AV cable (rca) directly from the cable tv box to the tv (video 2) lines can be seen and is very annoying, but if i connect only the coaxial cable that comes from the outside om my home directly to the tv there's no line.


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  • goldenboy_17 Jan 14, 2009

    You mean to use the adapter in the tv power cord or the cable tv box cord?

  • goldenboy_17 Jan 17, 2009

    It helped a lot, thank you very much for the help. It can be seen a little but no annoying as before.

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Hey there,

There may be a ground loop in your electrical wiring. Try connecting a 3 prong to 2 prong AC adapter between the power cord and the electrical wall outlet. You can find one in any hardware store for around one dollar. This will lift the ground from the TV. If your lines go away you may have an issue with your electrical wiring in the house or on an internal part on one of the components. The least expensive fix is to leave the adapter in place. I hope this helps.

Posted on Jan 14, 2009

  • timon0308 Jan 17, 2009

    On the TV power cord

  • timon0308 Apr 14, 2009

    Glad to hear that it helped you

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